Low-tech users don't give a damn if something has the guts of an "app" or not, they care about having a thing on the home screen they can click.
Businesses have the incentive to give their users that low friction experience (at the point of need) using already familiar rails (i.e. "install app from app store").
The makers of both iOS and Android treat the ability to "bookmark" a web URL onto your home screen as a power user feature that requires navigating through complex, technical-sounding menus. Does it have to be like that? Of course not. They just have a business interest in pushing users away from the open web and towards their walled gardens.
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Mind you, I'm not saying, "advertising doesn't play a role in this". A clump of well aligned motivations is obviously going to be more powerful than a single isolated motivation. But let's not forget that apps built for non-technical users, which—I cannot stress this enough—IS MOST USERS, benefit greatly from lowest common denominator solutions where they never feel like they have to learn anything to get going.
Yes, this is the answer. It’s easy to forget if you live in a tech bubble, but there are probably billions of smartphone users who don’t even know how to type a url into a browser and navigate to it.
I’ve worked on projects where we ran this experiment, and the success rate of “install this app and click on it” is several times higher than “navigate to this webpage every time you want to use our tool”.
One small correction though, android has made it easier to add a “progressive web app” to the home screen now. You can prompt the user with a dialog asking if they want to install it. I think there was at least some period where Google was really encouraging PWAs. iOS still sucks. I’ve had very poor success rates in getting users to install our PWA using the iOS workflow (and our tool is something they need for their jobs, so they are highly motivated to install it).
> The makers of both iOS and Android treat the ability to "bookmark" a web URL onto your home screen as a power user feature that requires navigating through complex, technical-sounding menus.
Not the case on many Android browsers, you can present the user with a button to do this for them by listening for the `beforeinstallprompt` event. There are some requirements to meet for that, but it's a pretty user-friendly way to push your PWA to the home screen: https://developer.mozilla.org/en-US/docs/Web/Progressive_web...